Author Topic: Grizzly wet grinder wobble  (Read 1873 times)

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Offline festal

  • Posts: 393
Grizzly wet grinder wobble
« on: August 27, 2022, 06:27 PM »
Hello all. Friend of mine gave me grizzly T10097 wet grinder and the wheels wobble. Any ideas how to fix the issue?

Here is a video of the wobble

https://youtube.com/shorts/ylNJ85HjcKo?feature=share


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Offline Packard

  • Posts: 1527
Re: Grizzly wet grinder wobble
« Reply #1 on: August 27, 2022, 06:41 PM »
Take the wheel off and check to see if the shaft is bent.  If it spins true, try mounting the other wheel on the wobble side.

If that fixes it, then buy a replacement wheel.

If the shaft is bent, you will probably have to replace the motor.  I don’t think you can swap out shafts.

If it is new, ask Grizzly for a replacement.

Offline festal

  • Posts: 393
Re: Grizzly wet grinder wobble
« Reply #2 on: August 27, 2022, 06:57 PM »
Thank you. Will test it out. It’s dated 2011 so definitely not new and discontinued on the grizzly website


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Online Cheese

  • Posts: 9998
Re: Grizzly wet grinder wobble
« Reply #3 on: August 27, 2022, 09:06 PM »
If that's an actual video of the item you own, then the wheels wobble on both sides of the motor, so like Packard stated, check the shaft on the motor for runout.

Offline festal

  • Posts: 393
Re: Grizzly wet grinder wobble
« Reply #4 on: August 28, 2022, 07:27 AM »
If that's an actual video of the item you own, then the wheels wobble on both sides of the motor, so like Packard stated, check the shaft on the motor for runout.

Yep thats the video i made after i turned it on

Online Cheese

  • Posts: 9998
Re: Grizzly wet grinder wobble
« Reply #5 on: August 28, 2022, 10:09 AM »
Looking at that video closer, are you sure both of the wheels are securely attached to the shaft? I'd pull the wheels, clean the shaft and the wheel bores and make sure there are no small burrs that will hinder proper wheel attachment.

Offline JD2720

  • Posts: 1263
Re: Grizzly wet grinder wobble
« Reply #6 on: August 28, 2022, 10:32 AM »
The wheel shaft is separate from the motor motor.
If the suggestions above do mot work, here is a link to the Grizzly parts page.

Grizzly 10097 parts

Well, it looks like most of the parts are no longer available.
I have found this to be the case on a lot of Grizzly tools lately. I used to like Grizzly, not so much anymore.
« Last Edit: August 28, 2022, 10:36 AM by JD2720 »

Offline festal

  • Posts: 393
Re: Grizzly wet grinder wobble
« Reply #7 on: August 28, 2022, 10:47 AM »
Took the wheels off
Looks like shaft is bent I think

http://www.youtube.com/shorts/VKWinkAmM_Q


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« Last Edit: August 29, 2022, 03:39 PM by festal »

Offline festal

  • Posts: 393
Re: Grizzly wet grinder wobble
« Reply #8 on: August 29, 2022, 03:36 PM »
The wheel shaft is separate from the motor motor.
If the suggestions above do mot work, here is a link to the Grizzly parts page.

Grizzly 10097 parts

Well, it looks like most of the parts are no longer available.
I have found this to be the case on a lot of Grizzly tools lately. I used to like Grizzly, not so much anymore.

Yep discontinued and parts not available.  Oh well

Offline festal

  • Posts: 393
Re: Grizzly wet grinder wobble
« Reply #9 on: August 29, 2022, 03:39 PM »
Here is a better video


Offline JD2720

  • Posts: 1263
Re: Grizzly wet grinder wobble
« Reply #10 on: August 29, 2022, 04:11 PM »
I slowed the video down. Watching the end of the wheel shaft in slow motion, it appears that the end of the shaft is running true. The drive wheel appears to be out of round. The grinding wheel end is the important end, what does it look like running without the wheel on? Is the shaft tight in the bearings?   

Online Cheese

  • Posts: 9998
Re: Grizzly wet grinder wobble
« Reply #11 on: August 29, 2022, 04:12 PM »
Looks like it’s an issue with the wheel. If you watch just the shaft I don’t notice any movement. The wheel could be of uneven thickness or the hole in the wheel could have been bored off center.

Offline rvieceli

  • Posts: 1763
Re: Grizzly wet grinder wobble
« Reply #12 on: August 29, 2022, 04:39 PM »
@festal there are times when free isn't cheap enough. This may be one of those times.

Until 9/1/22 you can buy the current model of that sharpener from grizzly for $130

https://www.grizzly.com/products/grizzly-10-variable-speed-wet-sharpener/t32720

OR spend a bunch more and get a Tormek

Ron


Offline festal

  • Posts: 393
Re: Grizzly wet grinder wobble
« Reply #13 on: August 30, 2022, 07:28 AM »
@rvieceli thats true.  I don't think i want to get another grizzly :)  I'll keep my eye on used Tormeks and see if i can find one.

@JD2720 i'll double check today. 

@Cheese thats what it looks like.  I'll double check it again today.  Any ideas how to remove the wheel?  it has the pin in it.  Should I just hammer the pin out?

Online Cheese

  • Posts: 9998
Re: Grizzly wet grinder wobble
« Reply #14 on: August 30, 2022, 07:53 AM »
@Cheese thats what it looks like.  I'll double check it again today.  Any ideas how to remove the wheel?  it has the pin in it.  Should I just hammer the pin out?

Is it a roll pin or a solid pin? If it's a roll pin it can be driven out in either direction.  If it's a solid pin examine both end diameters to make sure it's not a taper pin. If it's a taper pin you'd tap on the smaller diameter to drive it out. Be gentle but forceful.  [smile]

Offline festal

  • Posts: 393
Re: Grizzly wet grinder wobble
« Reply #15 on: August 30, 2022, 10:47 AM »
@Cheese thats what it looks like.  I'll double check it again today.  Any ideas how to remove the wheel?  it has the pin in it.  Should I just hammer the pin out?

Is it a roll pin or a solid pin? If it's a roll pin it can be driven out in either direction.  If it's a solid pin examine both end diameters to make sure it's not a taper pin. If it's a taper pin you'd tap on the smaller diameter to drive it out. Be gentle but forceful.  [smile]

Looks like a roll pin. Its slotted in the middle

Online Cheese

  • Posts: 9998
Re: Grizzly wet grinder wobble
« Reply #16 on: August 30, 2022, 11:47 AM »
Looks like a roll pin. Its slotted in the middle

Then it looks like this?



If so, then it's the spring tension that holds it in the bore, a quick, sharp tap should break it loose it and then once it gets moving, you can continue to gently tap it through the shaft.

Offline festal

  • Posts: 393
Re: Grizzly wet grinder wobble
« Reply #17 on: August 30, 2022, 01:32 PM »
Looks like a roll pin. Its slotted in the middle

Then it looks like this?

(Attachment Link)

If so, then it's the spring tension that holds it in the bore, a quick, sharp tap should break it loose it and then once it gets moving, you can continue to gently tap it through the shaft.
Yep thats the one

Offline Packard

  • Posts: 1527
Re: Grizzly wet grinder wobble
« Reply #18 on: August 30, 2022, 04:33 PM »
Quote from: Cheese link=topic=69937.msg675562#msg675562 dat?
[/quote
Be gentle but forceful.  [smile]

That’s me in a nutshell.  [eek]

Offline festal

  • Posts: 393
Re: Grizzly wet grinder wobble
« Reply #19 on: September 01, 2022, 09:12 AM »
@Cheese
There were 2 roll pins. Got them removed.  note to self - order pin punch. I managed to use center punch but ended up breaking one lol. 

Here is a video of the shaft.  Looks ok to me.  not sure how else to check it
https://youtube.com/shorts/diW7rzWOdt4

Here is a video of a wheel. It does wobble.  I think thats the culprit
 
https://youtube.com/shorts/sW4IEy5Lp2g

But good news is that wheel and roll pins are avaialble and are about $15 plus shipping. 

Any thoughts?


Alex

Offline Bob D.

  • Retailer
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  • Posts: 2953
    • My Cordless Workshop
Re: Grizzly wet grinder wobble
« Reply #20 on: September 01, 2022, 11:19 AM »
I don't know if your wheel classifies as a wobble. Wouldn't an uneven face cause the same wobbly roll as seen in your video?

If the shaft is straight what happens if you mount the wheel on the shaft letting the wheel hang over the side of the CI tablesaw top then roll the shaft and observe the wheel. Where is the wobble then. Is it the whole wheel or just the face of the wheel that maybe needs to be dressed.

I am curious what is the hub of the wheel made from. Is it metal or plastic.
-----
It's a table saw, do you know where your fingers are?

Online Cheese

  • Posts: 9998
Re: Grizzly wet grinder wobble
« Reply #21 on: September 01, 2022, 11:52 AM »
@Cheese
There were 2 roll pins. Got them removed.  note to self - order pin punch. I managed to use center punch but ended up breaking one lol. 

Here is a video of the shaft.  Looks ok to me.  not sure how else to check it
https://youtube.com/shorts/diW7rzWOdt4

Here is a video of a wheel. It does wobble.  I think thats the culprit
 
https://youtube.com/shorts/sW4IEy5Lp2g

But good news is that wheel and roll pins are avaialble and are about $15 plus shipping. 

Any thoughts?


Normally you use 2 vee-blocks to hold each end of the shaft and then a dial indicator to check runout. However your method is fine in this instance because your wheel runout is excessive and that amount would show up immediately when you roll the shaft across the table surface.

Alex just purchase the wheel, a couple of spare roll pins, the proper size pin punch and go forward.  [smile]

Just make sure the replacement wheel also isn't out of round before you button everything up.

Offline festal

  • Posts: 393
Re: Grizzly wet grinder wobble
« Reply #22 on: September 10, 2022, 12:54 PM »
@Cheese
There were 2 roll pins. Got them removed.  note to self - order pin punch. I managed to use center punch but ended up breaking one lol. 

Here is a video of the shaft.  Looks ok to me.  not sure how else to check it
https://youtube.com/shorts/diW7rzWOdt4

Here is a video of a wheel. It does wobble.  I think thats the culprit
 
https://youtube.com/shorts/sW4IEy5Lp2g

But good news is that wheel and roll pins are avaialble and are about $15 plus shipping. 

Any thoughts?


Normally you use 2 vee-blocks to hold each end of the shaft and then a dial indicator to check runout. However your method is fine in this instance because your wheel runout is excessive and that amount would show up immediately when you roll the shaft across the table surface.

Alex just purchase the wheel, a couple of spare roll pins, the proper size pin punch and go forward.  [smile]

Just make sure the replacement wheel also isn't out of round before you button everything up.

Well got the replacement wheel, roll pins.  checked the wheel before assembly and it was rolling true no wobble.  Reassmebled everything and it still wobbles lol
Its weird.  All the parts by themselves seem to be working correctly but something gets misalligned during full assembly and operation.  here is new video
https://youtube.com/shorts/7xgGyoXNCCE?feature=share

at this point i'm out of ideas.